The Invisible Man

Flash to Bang (2x10)

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During an attempt to stop Chrysalis from testing a stolen laser that generates lightning, Darien is shocked and gets amnesia. He turns himself in to the police but they try to arrest him based on his criminal record. Stark, Chrysalis' leader, takes Fawkes away and tries to convince him he works for the CIA. However, the amnesiac Darien is stolen away a third time by the invisible Arnaud DeFehrn, who convinces Darien that he is his similarly-invisible brother Kevin, and that they have to rescue their third brother, Johnny. Johnny turns out to be Huiclov, DeFehrn's brother, and the whole thing is a ploy to get Huiclov out of prison. Darien manages to regain his memory and capture Arnaud only to give into Quicksilver madness, and DeFehrn escapes. Stark figures out there is a second invisible man and contacts DeFehrn to make an alliance to restore Arnaud's visibility...and kill Darien.